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Dry skin needs no explanation — you know you have it if your skin is dull, flaky, tight, cracked or all of the above. But dry skin is more than just a cosmetic problem. When your skin is cracked, infection-causing bacteria can enter more easily. So why do you have dry skin and what can you do to soothe it?

Common Causes of Dry Skin
Common causes of dry skin include:

Age. As we age, our bodies produce less sebum (oil) and our skin becomes thinner and drier. A decrease in sebum production means fewer lipids filling the gaps between cells in the skin barrier, making it easier for water to evaporate from the skin.

Long, hot showers and baths. Showers longer than 10 minutes are more likely to lead to dry skin. The same goes for a hot tub.

Climate. If you live in a sunny or dry environment like the mountains or desert, your skin is more likely to be dry.